first pass at default values for const generics
- Adds optional default values to const generic parameters in the AST and HIR - Parses these optional default values - Adds a `const_generics_defaults` feature gate
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@@ -614,9 +614,13 @@ impl<'hir> Sig for hir::Generics<'hir> {
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start: offset + text.len(),
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end: offset + text.len() + param_text.as_str().len(),
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});
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if let hir::GenericParamKind::Const { ref ty } = param.kind {
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if let hir::GenericParamKind::Const { ref ty, ref default } = param.kind {
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param_text.push_str(": ");
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param_text.push_str(&ty_to_string(&ty));
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if let Some(ref _default) = default {
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// FIXME(const_generics_defaults): push the `default` value here
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todo!();
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}
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}
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if !param.bounds.is_empty() {
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param_text.push_str(": ");
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